EP 0874003 A1 19981028 - Process for co-polymerization of olefins
Title (en)
Process for co-polymerization of olefins
Title (de)
Verfahren zur Copolymerisation von Olefinen
Title (fr)
Procédé pour la copolymérisation des oléfines
Publication
Application
Priority
US 83783197 A 19970422
Abstract (en)
The present invention provides a process for control of desired properties in the polymer product. The catalyst system used in the process includes a supported metallocene catalyst precursor in combination with an oxyorganoaluminum. The process can be applied to the co-polymerization of propylene and ethylene. The randomness of the ethylene incorporation of the co-polymer product is increased as the amount of ethylene in the feed is increased. The amount of ethylene in the feed is up to 6 wt% with a resulting amount of ethylene incorporated into the copolymer product up to 4 mole %.
IPC 1-7
IPC 8 full level
C08F 4/642 (2006.01); C08F 4/648 (2006.01); C08F 4/659 (2006.01); C08F 4/6592 (2006.01); C08F 210/02 (2006.01); C08F 210/06 (2006.01); C08F 210/16 (2006.01)
CPC (source: EP US)
C08F 10/00 (2013.01 - EP US); C08F 210/06 (2013.01 - EP US); C08F 210/16 (2013.01 - EP US); C08F 4/65912 (2013.01 - EP US); C08F 4/65927 (2013.01 - EP US); Y10S 526/905 (2013.01 - EP)
Citation (search report)
- [X] WO 9516716 A1 19950622 - EXXON CHEMICAL PATENTS INC [US]
- [X] EP 0685494 A1 19951206 - DANUBIA PETROCHEM POLYMERE [AT]
- [X] EP 0347128 A1 19891220 - EXXON CHEMICAL PATENTS INC [US]
- [A] EP 0576970 A1 19940105 - HOECHST AG [DE]
- [A] CHIEN J C W ET AL: "OLEFIN COPOLYMERIZATION WITH METALLOCENE CATALYSTS III. SUPPORTED METALLOCENE / METHYLALUMINOXANE CATALYST FOR OLEFIN COPOLYMERIZATION* COPOLYMERIZATION", JOURNAL OF POLYMER SCIENCE, POLYMER CHEMISTRY EDITION, vol. 29, no. 11, 1 October 1991 (1991-10-01), pages 1603 - 1607, XP000238172
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
US 5789502 A 19980804; EP 0874003 A1 19981028; EP 1645570 A2 20060412; JP H10306127 A 19981117
DOCDB simple family (application)
US 83783197 A 19970422; EP 06100341 A 19980422; EP 98107286 A 19980422; JP 12271198 A 19980417